Weather strip or sealing means



April 13, 1937. I H. D. RANDALL 2 ,O77,264 WEATHER STRI? OR SEATT-INGMEANS 7 Filed Sept. 24, 1954 V gwuc wtm therefor.

An object of the invention is to provide l a,

weather strip which is applied by means'oi :a continuous fasteningeans,- jsuch as an adhesive" coating carried by the back "of the strip.

I v finotheri object of the inventionis to provide a, weather strip orsealing element havingapel0 cuiiar shape which affords a lightlycontactin but tight sealing structure atflthjoihts' between movablemembers, such as windows er, doors an their frames, and otherclosures,"'" Another object of the invention is to provide an article ofthe character stated', .which is 'longlived, easily applied, andinexpensively manu-f factured.

A further objectofthe invention isitofprovide a simpleinexpensive' andeffective method of manufacturing the article above referred to,

'Ifhese and other objects are attained by' the' means describedfhereinand disclosed infthe-ac companying drawing, in which:

Fig. 1 is a fragmental 'crosssectionalview' of a sliding windowstructure withthe weather strip; or sealing strip ofgthe inventionapplied thereto. Fig. 2 is a fragmental perspective view showing thearticle of the invention appliedto. one edge' of a hinged window ordoor. Fig. 3 is an enlarged end view of the completed weather strip orsealing element of the invention. Fig. 4 is an end view of a slittingmachine that may be employed in practicing the method of manufacture ofthe strip'shown in Fig. 3. Referring to the accompanying drawing,.5indicates the weather strip or sealing strip which is the subject of thepresent invention. The strip preferably is fabricated of felt, rubber orother flexible and resilient material which may Moonsidered suitable. Asshown in Fig. 3, the strip is substantially triangular of cross section,the angle 6 which is opposite to the hypotenuse being obtuse and thelegs 1 and 8 which include said angle being disposed angularly to thehypotenuse to include the acute angles 9 and Hi. In the preferred formof the invention, the leg I is longer than the leg 8, and the longer legcarries a coating of adhesive which preferably is water-proof andcapable of being softened or rendered tacky by the application of asuitable solvent. That portion of the material which forms the angle 9provides a flexible, tapered, over-hanging projection I2, which isadapted for substantial line'- contactin'g abutment with a surface suchas I3, which surface is movable relative to the sealing trut.

windowfrainell jrrn e' character 11 'indicates'any suitable ad:

hesive whiciiis applied to the material defined by thelongerleg 1, whichi s the basefof the seal 7 ing strip Theexactcomposition of the adhesivel0 is'not'important' to the invention, howevenit may be stated tl' atthe adhesive may comprise"mil tures of gum, 'guttagpercha,rubber,cellulo sie niaterial, or the: like; which may be "softened andrendered tacky by the application of suitable solvents such ascarbontetrachloride,"alcohol,

acetoneor the lil r'e'. The adhesive is applied only; tethe bas'eofjthestrip', and doe'sh'ot extend totheflexib'le', tapered projection l2." -'-When it is;

b e over h'angin'g projection 1 2 is -adapted" to flex ii-.thejni'annerindicated in Fig.- 1, wherein l3 and If indicate window Vsasheswhich are' movable between the usual guide stripsIS ofa' PATENTowls-s a -Q"'2,o1'1,2ei "jj f Y wn'a rn'a t s'rmr ori sEALrnG Means p lf mainstream m ngle,iimof;,; Application September-24,i934;eriilfNof'ldmfld 6 Claims, (or-jis s zlff This invention relates to aWeatherstripping I or sealing means, and a fmethod of manufacture j Y? hituri s the, weather stnpfergealm stri'pof this invention, 'a'sin'g'lelength of resilient,

rein; rubberior ik v s b i v d or t do 'iia Q1. slitter' knives, l'9'-andj2p," in thelrri'anner illusy; I tr'atediniFig; 4." 'JSaid length ofmaterialinitially' is: parallelogrammicjin, crosssection, with"opposed tacute angles 2 l and22 and opposed obtuse angles 23 and 22.;'Ihe/material' is,fe'diih.any'suitable manner such as by meansofa'moving conveyor belt to the angula'rly disposedslitterjelements l9 and20, which perform the slitting operation in a plane which passes throughthe opposed, acute angles 2| and 22 of the parallelogrammic form.

The device of Fig. 4 may include also a feed-controlling means or roller26 which determines the rate of linear travel of the strips past theslitter or cutting means. The roller may be mounted upon a shaft 21 with-a pulley or the'like 28 adapted to be driven at a pre-determined rateof rotation so as to control the movement of the strip through theslitting means. Although other forms of slitting mean's'may'be employed,there'is illustrated one form only, which comprises sharpened discs l9and 20 mounted upon rapidly rotating. shafts 29 and-10 which aresupported for e rotation at a proper angle to slit the strip in thedesired manner aforesaid. By-means of the foregoing apparatus, themethod is'performed: so as to fabricate two complete weather or sealingstrips at one slitting operation. It is to be understood that theadhesive coating above referred to may applied to opposite faces of thestrip either before or after the slitting operation,

It will be noted that in applying the finished Weatherstrip or sealingstrip to a window frame or to a door or the like as indicated'in Fig.2,the adhesive will have no opportunity to reach the window sash or thedoor sill due'to the fact that the portion II of the sealing stripoverhangs the adhesive coating base to such an extent that i l0 smearingor displacement of the adhesive on to the sash or sill is practically,impossible. The feathered edgeformedat the intersection ofthe shorter.leg. I and thehypotenuse I. is resilient and flexible so that it mayassume the position indicated in Fig. 1, thereby to form a line con-'tact with' the sash or sill without suchstrong force as would inducescratching of the sash or sill surfaces and premature wearing of thesealing edge. The use of a water-proof solvent-softened adhesive insuresa tight joint, or one which con:

stitutes a continuous-fastening means. The pe- I culiarshape oftheiinished articIe aifords; a lightly contacting and tight a, sealingstructure which is long-lived when. applied andiinexpensivelymanufactured. r

The device of the invention is fnot limited to application to windows ordoors, nor does the apparatus of Fig. 4 represent ajfinished andfuliydeveloped machine'for practicing the process used in: manufacturingvthestrip of the invention; Therefore-it is to;be, understood ,thatvarious'1 modifications and changes in the" structural details characterizing,the invention may. e made within thescope of the appended claimswithoutdeparting from thespirit oftheinvention.

-- Whatis claimedis;

a .surfaceand a resilient tapered "projection over:

. ing' af length'of resilient niaterialto render its acute angles andopposed obtuse angles, and thereafter movingsaid length 'ofmaterial"pro,-

hav g an adhesivecoated base to be jat tached tof hanging 'the base,said method comprising 1form-' j crosasecuon parallelogrammicwithyopposed gressively relative: to' a; "cutting means for but; 1:

ting said material along a plane which passes through the opposed acuteangles of the parallelogrammic form, then applying an adhesive to afacewhich provides the insect the strip,

3. The method of manufacturing a sealing strip which method comprisespreforming a length of resilient material to render its cross-sectionparallelogrammicwith opposedacute angles and opposed obtuse angles, thenmoving said length of material progressively relative to acuttingmeans1dr; splitting} the mama; along a pl'aneij which passes'throughTtheopposed" acute angles of the parallelogrammic form;

4. The method of manufacturing a pluralityof completedzsealing strips inone operation which method comprises applying a coating ofwater=proofsolvent-softened adhesive to opposite faces of alengthofrubber, which length of rubber is first-made parallelogrammic ofcrosssection, and thereafter moving said length of rubber progressivelyrelative to a cutting means for-splitting said length. of rubber along aplane which passes" substantially through two opposite angles of theparallelogrammic form,g to provide two completed sealing strips. f

a 5. The method of "manufacturing a weather.

strip having an adhesive coated memes:

ment of the'strip to a surface, said methodfcom prising .subiecting alength of resilient material to an adhesive coatingtreatment, to coatthat' face of thestrip whichjwill provide, the lw'eath'e'rf strip base,said length of material being initially paralielogrammic "ofcross-section, then moving: said length of material progressivelyrelative to a cutting means forslitting said length-of matei rialfalongjaplane which passes summons through two opposed angles of theparallelogram-. mic fornn 6. The method of manufacturing a a weatherstrip having a base portion adhesively coate'd for. attachment jthereofto a; surface, I said method comprising forming a "length ofresilient material to render it parallelogrammic of cross'se'c 'tion,moving said length of material progressivelyirelative to a cutting meansfor splitting said lengthof material along a planejfwhichjpassesfsubstantially -throughftwo opposite angles of the paralielogrammicifor'r'n, then.,applying an 7 fidhfi? sive to a' face whichpr'ovides the,base of." the weather stripp, v

f -v HOWARDD/RANDALL.

